## X fixed.acidity volatile.acidity citric.acid
## Min. : 1.0 Min. : 4.60 Min. :0.1200 Min. :0.000
## 1st Qu.: 400.5 1st Qu.: 7.10 1st Qu.:0.3900 1st Qu.:0.090
## Median : 800.0 Median : 7.90 Median :0.5200 Median :0.260
## Mean : 800.0 Mean : 8.32 Mean :0.5278 Mean :0.271
## 3rd Qu.:1199.5 3rd Qu.: 9.20 3rd Qu.:0.6400 3rd Qu.:0.420
## Max. :1599.0 Max. :15.90 Max. :1.5800 Max. :1.000
## residual.sugar chlorides free.sulfur.dioxide
## Min. : 0.900 Min. :0.01200 Min. : 1.00
## 1st Qu.: 1.900 1st Qu.:0.07000 1st Qu.: 7.00
## Median : 2.200 Median :0.07900 Median :14.00
## Mean : 2.539 Mean :0.08747 Mean :15.87
## 3rd Qu.: 2.600 3rd Qu.:0.09000 3rd Qu.:21.00
## Max. :15.500 Max. :0.61100 Max. :72.00
## total.sulfur.dioxide density pH sulphates
## Min. : 6.00 Min. :0.9901 Min. :2.740 Min. :0.3300
## 1st Qu.: 22.00 1st Qu.:0.9956 1st Qu.:3.210 1st Qu.:0.5500
## Median : 38.00 Median :0.9968 Median :3.310 Median :0.6200
## Mean : 46.47 Mean :0.9967 Mean :3.311 Mean :0.6581
## 3rd Qu.: 62.00 3rd Qu.:0.9978 3rd Qu.:3.400 3rd Qu.:0.7300
## Max. :289.00 Max. :1.0037 Max. :4.010 Max. :2.0000
## alcohol quality
## Min. : 8.40 Min. :3.000
## 1st Qu.: 9.50 1st Qu.:5.000
## Median :10.20 Median :6.000
## Mean :10.42 Mean :5.636
## 3rd Qu.:11.10 3rd Qu.:6.000
## Max. :14.90 Max. :8.000
most of the wine are quality of 5 and 6 and it also show that we don’t have enough data of all quality of wine
the sulphates histogram has outliers it shows that there are some wine with more sulphate values
sugar value of wines lies between 1.5 and 2.5 it clearly states that most of wine have less sugary
acidity of wine is normally distributed and there are wine with high acidity like 16
we nearly having 1599 observation and of 12 variables but we don’t
have equaly distrbuted of datas of each quality
i would like to see what are factor which actually defining the quality of wine
residual sugar got few outlier so i subset the sugar less that 8 ad i ploted to see the
distribution of sugar
in the above plot we can clearly see that there is a correlation between is good amount of correlation between
the above scatter plot clearly shows that citric acid causes the acidity the outlier is also removed for the better understanding of data
the above scatter plot clearly shows that lesser ph value have more acidity
the bar plot shows that high quality wine have relatively high alcohol content than lower quality wine
the above clearly states that low quality wine has vinegar taste but when we see quality 7 and 8 there is no significant change
most of wine has same level of saltiness except 3 becuase it has a big quadrant
here we can see that if we have more sulphur which also leads to more free sulphur but in this dataset all the point clouded in the lower point and ti shows that most of wine are less sulfur
there is coorelation between density and alcohol hihger the density lower the alcohol content
acutally acidity leads to pH but interstingly volatile acidity not affecting
pH value of wine
this plot show that there is diffrent variant of wine less quality with moderate alcohol
moderate quality less alcohol and more qulaity with more alcohol
one of the interesting realtion which i found in the dataset is density
corealating with qualit of wine
we know that acidity affects pH value but the intresting relation which i found
is volatile is not affecting the pH of wine
the above multivariate plot show that quality 5 wine having high acidity when compare to 7
we can see that there is a corelation between acidity and pH value . i think citric acid is the reason for acidity because lower citric acid has less citric acid and high ph value
the streak of length of sulphur is less in lesser quality wine shows that lower quality wine has less in sulfur
the above grid plot clearly shows that quality 5 and 6 has more sulphur and also shows that it has less citric acid which leads to less acidiy
the wine quality 5 and 6 has high acidity and wide range of density but 3,4,7,8 has less acidity but 8 has less acidity and density
the above plot show that lesser density has higher alcohol content
but quality 7 having lesser density abd highr alchol content
eventhough we have decent (more or less same) of amount of wine in both quality 5 and 6
the alcohol content defininf the quality of wine
the scatter plot clearly show that there is increase in citirc acid
leads to increase in fixed acidity
we can see that high quality wine has less acidity but pH values is wide spreded this makes me to think the relation between ph and Volatile Acidity so volatile Acidity not affecting the pH value that much
it clearly shows that high citrus level leads to high acidity and low pH value likewise low citrus values gives low acidity and pH value and also gives that quality wine is mainly depend on citrus level of wine